4. Jason Derulo
According to Forbes, Derulo purchased his ‘castle’ in Tarzana, California, for $3 million. The bachelor pad consists of five bedrooms, five bathrooms, attached guesthouse and two garages, each fitting up to eight cars. The property also has a 3,600 square-foot guesthouse. The Tudor-inspired home has a bridge, built-in bar, spa, gym, sauna, tanning room, grand staircase, and 75-foot pool.